[PATCH v3] elf: Don't set sh_offset of .tbss sections beyond EOF

[Alan Modra]

On Wed, Apr 30, 2025 at 05:38:00AM +0800, H.J. Lu wrote:
> If there is no .tdata section, put meaningless sh_offset of .tbss sections
> without file contents somewhere within the first page, in an attempt to
> not point past EOF and avoid sh_offset of zero.

1) Do we have any real world binaries where .tbss alignment is such
that it places sh_offset for the section past all other following
sections?  (.tbss has a lot of section following it, in contrast with
.bss.)
2) Even if such binaries exist, do tools that manipulate the binary
still have bugs in their SHT_NOBITS handling? 

ie. Is any of this necessary?

I'm inclined to think we should consider going the opposite direction,
removing the hack trying to prevent p_offset from being past
end-of-file if (2) is no longer true.

-- 
Alan Modra